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Official data from INPI

MÉTODO PARA PRODUZIR ENGRENAGENS ANULARES.

PublicadaInvention Patent

Application data

Number

PI8800694

Type

Invention Patent

Filing

02/12/1988

Publication

10/04/1988

Progress at the INPI

  1. Filing02/12/88
  2. Publication10/04/88
  3. Examination02/13/91
  4. Allowance01/02/96
  5. Grant03/25/97
  6. Expired09/02/08

The letters patent expired on 09/02/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/04/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. C. (pessoa física)

US

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Inventors

A. S. (pessoa física)

US

G. V. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

14,429 · 02/12/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

10/04/1988

RPI 937

Pedido de patente depositado

#2.1

05/10/1988

RPI 916

Carta-patente expirada

#21.1

Patente extinta em 12/02/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

03/25/1997

RPI 1373

Notificação para pagamento de retribuição

#13.1

07/02/1996

RPI 1335

Deferimento

#9.1

01/02/1996

RPI 1309

Exigência - art. 36 da LPI

#6.1

09/06/1994

RPI 1240

Solicitação de exame técnico

#4.1

02/13/1991

RPI 1054

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